If you’re ever on a roller coaster you are probably keeping your all of your focus on trying not to puke. But there is lots of energy at work. There’s a bit of kinetic energy at the beginning (the start) because you are starting to slowly go up the chains. There is no GPE because you at the lowest point possible. Then the kinetic energy starts to change into some more GPE (gravitational potential energy) the higher you get. At point 1 all of the energy inside is GPE. This is because it the rollercoaster at the highest possible point (without flying off the tracks) and it is momentarily not moving. At point 2, all of the gravitational potential energy turns into kinetic energy, so there is no more GPE. This is because the rollercoaster is at the lowest possible point and is moving very fast. This speed is due to the hill that the rollercoaster just sped down. At point 3, a tiny slice of gravitational potential energy appears because the cart is rising just a bit and every time the cart rises, more gravitational potential energy appears. For kinetic energy the amount at point 1 is none. The cart is momentarily not moving, so all kinetic energy disappears. The amount kinetic energy at point 2 rises a lot and all of the energy here is kinetic energy. This is due to the high speeds it has right now, and its elevation which is the lowest possible. At point 3, the cart has a little bit less kinetic energy than at point 2. The reason for this is the cart starts to rise uphill and obtains more gravitational potential energy, and because there is now some gravitational potential energy. For kinetic energy, you are moving very fast so there is just a bit less than at point 2. I know of one way how kinetic energy and gravitational potential energy are connected. This connection is the fact that they each have something to do with motion whether it is the possibility that motion may occur, or that fact that motion is occurring with the second energy, these two kinds of energy are quite alike.
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